//
//  WBHomeViewController.swift
//  传智微博
//
//  Created by Apple on 17/3/26.
//  Copyright © 2017年 ZhangHanLin. All rights reserved.
//

import UIKit

// 定义全局常量，尽量使用 private 修饰，否者到处都可以访问
private let cellId = "cellId"

class WBHomeViewController: WBBaseViewController {

    fileprivate lazy var listViewModel = WBStatusListViewModel()
    
//    /// 微博数据数组
//    fileprivate lazy var statusList = [String]()
    
    /// 加载数据
    override func loadData() {
        
        print("准备刷新，最后一条 \(self.listViewModel.statusList.last?.text)")
        
        listViewModel.loadStatus(pullup: self.isPullup) { (isSuccess,shouldRefresh) in
            
            print("加载数据结束 ")
            // 结束刷新控件
            self.refreshControl?.endRefreshing()
            // 恢复上拉刷新标记
            self.isPullup = false
            
            // 刷新表格
            if shouldRefresh {
                self.tableView?.reloadData()
            }
            
        }
        
        // 用 网络工具 加载微博数据
        WBNetworkManager.shared.statusList { (list, isSuccess) in
            
            // 字典转模型，绑定表格数据
            print(list)
        }
        
        print("开始加载数据 \(WBNetworkManager.shared)")
        
    }
    
    /// 显示好友
    @objc fileprivate func showFriends() {
        print(#function)
        let vc = WBDemoViewController()
        
        // vc.hidesBottomBarWhenPushed = true
        
        // push 的动作是 nav 做的
        navigationController?.pushViewController(vc, animated: true)
        
    }

}

// MARK: - 表格数据源方法, 具体的数据源方法实现，不需要 super
extension WBHomeViewController {
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return listViewModel.statusList.count
    }
    
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        
        // 1. 取 cell
        let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath)
        
        // 2. 设置 cell
        cell.textLabel?.text = listViewModel.statusList[indexPath.row].text
        
        // 3. 返回 cell
        return cell
    }
}

// MARK: - 设置界面
extension WBHomeViewController {
    

    /// 重写父类的方法
    override func setupTableView() {
        
        super.setupTableView()
        
        // 设置导航栏按钮
        // 无法高亮
        // navigationItem.leftBarButtonItem = UIBarButtonItem(title: "好友", style: .plain, target: self, action: #selector(showFriends))
        
        // Swift 调用 OC 返回 instanceType 的方法，判断不出是否可选
        //        let btn: UIButton = UIButton.cz_textButton("好友", fontSize: 16, normalColor: UIColor.darkGray, highlightedColor: UIColor.orange)
        //        btn.addTarget(self, action: #selector(showFriends), for: .touchUpInside)
        //
        //        navigationItem.leftBarButtonItem = UIBarButtonItem(customView: btn)
        navItem.leftBarButtonItem = UIBarButtonItem(title: "好友", target: self, action: #selector(showFriends))
        
        // 注册原型 cell
        tableView?.register(UITableViewCell.self, forCellReuseIdentifier: cellId)
    }
    
}
